第二章单元测试
  1. Biomass energy is one nonrenewable energy source.( )

  2. A:错 B:对
    答案:错
  3. Nuclear energy is renewable energy source.( )

  4. A:错 B:对
    答案:错
  5. Underground mining of coal may cause subsidence.( )

  6. A:对 B:错
    答案:对
  7. Resources are smaller than reserves.( )

  8. A:对 B:错
    答案:错
  9. Surface mining of coal may cause landscape disturbance。( )

  10. A:错 B:对
    答案:对

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